Kendall Jenner's star has been slowly rising, as the Kardashian half-sister earns more and more modeling jobs (enough to score her a New York Times profile). So how is she paying her newfound success forward? By helping out her big bro, Rob Kardashian.

Kendall and her younger sister, Kylie, posed for new promo photos for Arthur George, Rob's sock line. Yes, Rob's collection of blindingly colorful socks is still in existence and growing: Kendall posted the photos on her blog with the note, "There are so many styles available online and they’re coming out with even more at Neiman Marcus stores on July 1st!"